Multifunctional light-shielding bucket

Abstract

A MULTIFUNCTIONAL LIGHT-SHIELDING BUCKET. A multifunctional light-shielding bucket comprises a light-shielding bucket body, an adjustable filter holder and a lens mounting ring. The light shielding bucket body comprises a light-shielding bucket frame and a light-shielding plate installed towards a front side of the light-shielding bucket body. The light-shielding bucket frame is coupled to the light-shielding plate via a mounting block and a connecting support. The lens mounting ring comprises a lens connecting thread for connecting the multifunctional light-shielding bucket to a camera lens.

What is claimed is: 
     
         1 . A multifunctional light-shielding bucket, comprising:
 a light-shielding bucket body, wherein the light shielding bucket body comprises:
 a light-shielding bucket frame; and 
 a light-shielding plate installed towards a front side of the light-shielding bucket body, wherein the light-shielding bucket frame is coupled to the light-shielding plate via a mounting block and a connecting support; 
   an adjustable filter holder;   a lens mounting ring, wherein the lens mounting ring comprises a magnetic coupling surface configured to engage a complementary magnetic adapter ring, the magnetic adapter ring having a threaded portion for mounting to a front portion of a camera lens barrel, and magnets for magnetic coupling with the lens mounting ring; and   a portable collar, wherein the portable collar comprises:
 a pair of M4 screws, wherein the pair of M4 screws are configured to couple the adjustable filter holder towards a front side of the portable collar; and 
 a second ring adapter slot disposed towards a rear side of the portable collar, wherein the lens mounting ring is fastened and fixed within the second ring adapter slot. 
   
     
     
         2 . The multifunctional light-shielding bucket according to  claim 1 , wherein the mounting block comprises a cylindrical groove configured to receive a damping sleeve. 
     
     
         3 . The multifunctional light-shielding bucket according to  claim 2 , wherein the damping sleeve is configured to:
 rotatably couple the connecting support to the mounting block; and   receive a damping pin provided on the connecting support.   
     
     
         4 . The multifunctional light-shielding bucket according to  claim 1 , wherein a front side of a filter fixing bracket is coupled to a rear side of the light-shielding bucket body,
 wherein the filter fixing bracket comprises:   a filter base assembly; and   a graduated neutral density (GND) filter holder assembly, wherein a filter slot is defined between the GND filter holder assembly and the filter base assembly, wherein the filter slot is configured to receive the adjustable filter holder.   
     
     
         5 . The multifunctional light-shielding bucket according to  claim 4 , wherein the light-shielding bucket body is configured to be detachably coupled to the filter fixing bracket via a pair of longitudinal protruding members provided on each of the inner walls of the light-shielding bucket frame. 
     
     
         6 . The multifunctional light-shielding bucket according to  claim 5 , wherein at least one of the longitudinal protruding members is provided on an actuating member in a manner that the at least one of the longitudinal protruding members faces an aperture of the light-shielding bucket frame and at least another of the longitudinal protruding members is provided on the light-shielding bucket frame opposite to the actuating member. 
     
     
         7 . The multifunctional light-shielding bucket according to  claim 6 , wherein the longitudinal protruding members is configured to snap on to the front side of the filter fixing bracket by operating the actuating member. 
     
     
         8 . The multifunctional light-shielding bucket according to  claim 4 , wherein the filter base assembly comprises:
 a filter base frame comprising:
 a rectangular slot, wherein the rectangular slot is configured to receive a magnetic button, wherein the magnetic button comprises:
 a first portion disposed towards the front side of the filter base frame; 
 a second portion disposed towards the rear side of the filter base frame; 
 a connecting rod configured to couple the first portion and the second portion of the magnetic button, wherein the connecting rod extend sideways slightly beyond lateral sides of the second portion; and 
 a magnetic suction limiter portion extending from an inner wall of the second portion of the magnetic button; 
 at least one ring locker slot disposed on lateral sides of the filter base frame; and 
 a first ring adapter slot configured to receive the lens mounting ring. 
 
   
     
     
         9 . The multifunctional light-shielding bucket according to  claim 8 , wherein the ring locker slot is provided with a clamper slot, in a manner that the clamper slot provides access from the ring locker slot to an aperture of the filter base frame. 
     
     
         10 . The multifunctional light-shielding bucket according to  claim 8 , wherein the ring locker slot is configured to receive a ring locking means, wherein the ring locking means comprises:
 a sliding block comprising an L-shaped clamping block configured to securely engage the lens mounting ring on the filter base frame; and   a stopper for limiting the sliding movement of the sliding block, wherein the stopper comprises:
 a plurality of springs for enabling the snap fitting movement of the L-shaped clamping block; 
 a limit post to limit the outward movement of the L-shaped clamping block; 
 a limiting slot; and 
 a fastening screw configured to rigidly engage the filter fixing bracket with the lens mounting ring. 
   
     
     
         11 . The multifunctional light-shielding bucket according to  claim 8 , wherein the filter base frame comprises a filter card slot, wherein a front side of the filter card slot is configured to receive a special effect filter using a magnetic suction limit ring disposed on a rear side of the filter card slot. 
     
     
         12 . The multifunctional light-shielding bucket according to  claim 11 , wherein the special effect filter comprises a magnetic suction frame, wherein the magnetic suction frame is configured to magnetically couple with the filter card slot, when the special effect filter is placed in the filter fixing bracket. 
     
     
         13 . The multifunctional light-shielding bucket according to  claim 4 , wherein the GND filter holder assembly is configured to receive a graduated neutral density (GND) filter, wherein the GND filter assembly comprises:
 a first frame; and   a pair of clamping members configured to be rigidly fixed to a front side of the first frame, wherein:
 an outer wall of each of the clamping members is provided with at least an installation slot for mounting the light shielding body onto the filter fixing bracket; 
 an inner wall of each of the clamping members comprises a pair of first grooves; and 
 a pair of gripping members, wherein each of the first grooves receives the corresponding gripping members such that a first side of the gripping member is embedded within the first groove, while a second side of each of the gripping member protrudes slightly beyond the inner wall of the clamping members. 
   
     
     
         14 . The multifunctional light-shielding bucket according to  claim 1 , wherein the adjustable filter holder comprises:
 a frame body comprising:
 a magnetic positioning slot; 
 a plurality of positioning glass beads; and 
 a slave gear; and 
 a gear adjustment means fixed to the frame body, wherein the gear adjustment means comprises:
 an adjustment knob; 
 a main gear; and 
 a gear holder to operably connect the adjustment knob to the main gear. 
 
   
     
     
         15 . The multifunctional light-shielding bucket according to  claim 14 , wherein the gear adjustment means is fixed to the frame body using M3 screws positioned at an angle of 45° on an upper right corner towards a rear side of the frame body. 
     
     
         16 . The multifunctional light-shielding bucket according to  claim 14 , wherein, the adjustment knob is configured to drive the main gear when the adjustment knob is operated in a particular direction; and
 the main gear is configured to intermesh with the slave gear to rotate the slave gear in a direction opposite to the direction of rotation of the main gear.   
     
     
         17 . The multifunctional light-shielding bucket according to  claim 14 , wherein the adjustable filter holder is configured to receive a filter comprising a frame formed by meshing teeth, wherein the meshing teeth is configured to intermesh with the slave gear, such that the rotation of the slave gear induces rotation of the filter in a direction opposite to the slave gear. 
     
     
         18 . The multifunctional light-shielding bucket according to  claim 14 , the adjustable filter holder comprises:
 a magnetic filter card slot configured to accommodate a magnetic filter; and   a second magnetic suction limit ring disposed on an inner rim of the adjustable filter holder, wherein the second magnetic suction limit ring comprises strong magnets arranged in the form of a ring, wherein the second magnetic suction limit ring is configured to magnetically couple the magnetic filter with magnetic filter card slot for connecting the magnetic filter with the adjustable filter holder.   
     
     
         19 . The multifunctional light-shielding bucket according to  claim 1 , wherein the lens mounting ring comprises:
 a snap groove on an inner periphery of the lens mounting ring; and   the lens connecting threaded portion on an outer periphery of the lens mounting ring, wherein the lens connecting threaded portion is configured to be threaded to the camera lens to mount the multifunctional light-shielding bucket onto a camera equipment.